Whoever answers this question in 5 mins well get the brainliest ms. kitts works at a music store. last week she sold 6 more tha 3 times the number of cds that she sold this week. ms. kitts sold total of 110 cds over the 2 weeks. which system of equations can be used o find l, the number of cds she sold last week, and t, the number od cds she sold this week?

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.